I have developed a form, that based on a selection in a textbox, lists values in a listboks. This works fine.<br>I have also a subform in my form, that uses the same query, based on a selection in another textbox, belonging to this subform. When I try to run this, I get a "Enter Parameter Value" - msgbox. This does not happen with the mainform.<br>What can I do to stop this msgbox from appering??<br>